CVE-2019-9816 - Mozilla: Type confusion with object groups and UnboxedObjects

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MEDIUM

Mozilla: Type confusion with object groups and UnboxedObjects

Published Jul 23, 2019

5.9

MEDIUM

CVSS 3.0

EPSS 6.15%

Description

A possible vulnerability exists where type confusion can occur when manipulating JavaScript objects in object groups, allowing for the bypassing of security checks within these groups. *Note: this vulnerability has only been demonstrated with UnboxedObjects, which are disabled by default on all supported releases.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Affected products

Vendor Mozilla Product Firefox Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <67
Vendor Mozilla Product Firefox ESR Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <60.7
Vendor Mozilla Product Thunderbird Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <60.7

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Mozilla

Firefox

n/a

Version	Status	Constraints
unspecified	affected	<67

Mozilla

Firefox ESR

n/a

Version	Status	Constraints
unspecified	affected	<60.7

Mozilla

Thunderbird

n/a

Version	Status	Constraints
unspecified	affected	<60.7

Red Hat Enterprise Linux 6

firefox-0:60.7.0-1.el6_10

Fixed · RHSA-2019:1267
Red Hat Enterprise Linux 7

firefox-0:60.7.0-1.el7_6

Fixed · RHSA-2019:1265
Red Hat Enterprise Linux 8

firefox-0:60.7.0-1.el8_0

Fixed · RHSA-2019:1269
Red Hat Enterprise Linux 6

thunderbird

Not affected
Red Hat Enterprise Linux 7

thunderbird

Not affected
Red Hat Enterprise Linux 8

thunderbird

Not affected

Product	Package	State	Advisory
Red Hat Enterprise Linux 6	firefox-0:60.7.0-1.el6_10	Fixed	RHSA-2019:1267
Red Hat Enterprise Linux 7	firefox-0:60.7.0-1.el7_6	Fixed	RHSA-2019:1265
Red Hat Enterprise Linux 8	firefox-0:60.7.0-1.el8_0	Fixed	RHSA-2019:1269
Red Hat Enterprise Linux 6	thunderbird	Not affected	n/a
Red Hat Enterprise Linux 7	thunderbird	Not affected	n/a
Red Hat Enterprise Linux 8	thunderbird	Not affected	n/a

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-843

References (9)

https://access.redhat.com/security/cve/CVE-2019-9816
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1536768
x_refsource_MISCPermissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=1712625
Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2019-9816
https://www.cve.org/CVERecord?id=CVE-2019-9816
https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-9816
https://www.mozilla.org/security/advisories/mfsa2019-13/
x_refsource_MISCVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/
x_refsource_MISCVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/
x_refsource_MISCVendor Advisory

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2019-9816		Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1536768		x_refsource_MISCPermissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=1712625		Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2019-9816
https://www.cve.org/CVERecord?id=CVE-2019-9816
https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-9816
https://www.mozilla.org/security/advisories/mfsa2019-13/		x_refsource_MISCVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/		x_refsource_MISCVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/		x_refsource_MISCVendor Advisory